In this paper, the volatile oil of 18 samples from Cyathocline purpurea were determined by steam distilling method. 27 constituents of volatile oil were identified qualitatively and quantitatively by GC/MS. Three samples of volatile oil have been tested for cytotoxicity in cell growth inhibition against cultured L1210 murine leukemia cell.
In this paper,the karyotype of Malania oleifera Chun et Lee has been reported for the first time. The result shows that the number of the somatic chromosome of the species is 26, and its basic chromosome number is x=13. The karyotype formula is 2n=2x=24m(2SAT)+2sm, and belongs to 1A type of Stebbins karyotypic symmetry.